钛基复合材料小冲杆试验的有限元分析
Finite Element Analysis of Small Punch Test for Ti Matrix Composites
摘 要
采用小冲杆试验方法对Ti-6Al-4V合金和原位生成体积分数为5%,10%的TiB与TiC颗粒混合增强Ti-6Al-4V基复合材料的力学性能进行了试验,采用有限元分析了试样厚度和摩擦因数等试验条件对试验结果的影响.结果表明:有限元模拟的载荷-位移曲线与小冲杆试验曲线的走向基本一致,试样承受的最大载荷对其厚度十分敏感;载荷-位移曲线对于试样的摩擦因数并不敏感;通过有限元模型中的参数计算的三种钛材料的断裂韧度JΙC和小冲杆试验总能量Esp与等效断裂应变存在线性关系,并建立了相应的经验公式.
力学性能
有限元模拟
钛基复合材料
small punch test
mechanical property
finite element analysis
Ti matrix composite
Abstract
Mechanical properties of Ti-6Al-4V alloy and the Ti-6Al-4V base composites(MMCs) particulate-mixing-reinforced with 5 vol% and 10 vol%(TiB+TiC) were investigated by small punch test.The effects of test conditions such as sample thickness and friction coefficient on test results were studied by using finite element analysis.The results show that the load-displacement curves established by FEM simulation and small punch test had the same trend.The maximum load was sensitive to the sample thickness,while the load-displacement curve was insensitive to the friction coefficient.There existed linear relationship between the fracture toughness JIC,small punch energy ESP,and equivalent fracture strain.The empirical formula was built up.
中图分类号 TB331
所属栏目 物理模拟与数值模拟
基金项目 国家自然科学基金重点资助项目(50730001);上海市科委科技发展基金资助项目(08521102103);澳大利亚教育科学培训部国际科技合作项目(110069)
收稿日期 2009/1/14
修改稿日期 2009/8/10
网络出版日期
作者单位点击查看
备注朱聪聪(1984-),女,山东淄博人,硕士研究生.
引用该论文: ZHU Cong-cong,J.MAK,W.Y.YEUNG,QIN Ji-ning,Lv Wei-jie,ZHANG Di. Finite Element Analysis of Small Punch Test for Ti Matrix Composites[J]. Materials for mechancial engineering, 2010, 34(4): 87～91
朱聪聪,J.Mak,W.Y.Yeung,覃继宁,吕维洁,张荻. 钛基复合材料小冲杆试验的有限元分析[J]. 机械工程材料, 2010, 34(4): 87～91
被引情况:
【1】刘燕,汤杰,苏成功,王威强, "连续球压痕法测试钢管应变时效后拉伸强度的变化",理化检验－物理分册 52, 77-82(2016)
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参考文献
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【2】QIN Ye-xia,LU Wei-jie,ZHANG Di.Oxidation of in situ synthesized TiC particle-reinforced titanium matrix composites[J].Materials Science and Engineering,2005,404:42-48.
【3】CARR D G,CALLAGHAN M D,WEI T,et al.Deformation and fracture behaviour prediction of zircaloy-4[C]//International Conference on Structural Integrity and Failure.Sydney:[s.n.],2006:27-29.
【4】BUDZAKOSKA E,CARR D G,STATHERS P A,et al.Predicting the J integral fracture toughness of Al 6061 using the small punch test[J].Fatigue and Fracture of Engineering Materials and Structures,2007,30(9):796-807.
【5】FLEURY E,HA J S.Small punch tests to estimate the mechanical properties of steels for steam power plant: I.Mecha-nical strength[J].Int J Pressure Vessels Piping,1998,75(9):699-706.
【6】SHINDO Y,YAMAGUCHI Y,HORIGUCHI K.Small punch testing for determining the cryogenic fracture properties of 304 and 316 austenitic stainless steels in a high magnetic field[J].Cryogenics,2004,44:789-792.
【7】MANAHAN M P,ARGON A S,HARLING O K.The development of a miniaturized disk bend test for the determination of postirradiation mechanical properties[J].Journal of Nuclear Materials,1981,103/104:1545-1550.
【8】BAIK J M,KAMEDA J,BUCK O.Small punch test evaluation of intergranular embrittlement of an alloy steel[J].Script Mitalurgica,1983,1(7):1443-1447.
【9】LUCAS G E,SHECKHEAD J W,ODETTE G B,et al.Shear punch test for mechanical property measurements in TEM disc-sized specimens[J].Journal of Nuclear Materials,1984,122/123:429-437.
【10】MAO X,SHOJI T,TAKAHASHI H.Characterization of fracture behavior in small punch test by combined recrystallization-etch method and rigid plastic analysis[J].Journal of Testing and Evaluation,1987,15(1):30-37.
【11】张小亮,王兆希.小冲杆试验方法研究进展及存在的问题[J].中国测试技术,2008(34):10-14.
【12】MAK J,WUHRER R.Small punch test of advanced in-situ synthesized Ti metal matrix composites[J].Advanced Materials Research,2008,47/50:738-741.
【13】JU J B,JIANG J I,KWON D.Evaluation of fracture toughness by small-punch testing techniques using sharp notched specimens[J].Int J Press Vessels Piping,2003,80:221-228.
【14】韩浩,关凯书,李建卫,等.小冲杆试验参数的有限元分析[J].机械强度,2004,26(4):455-459.
【15】《工程材料实用手册》编辑委员会.工程材料实用手册[M].北京:中国标准出版社,2002:616-617.
【16】BULLOCH J H.A study concerning material fracture toughness and some small punch test data for low alloy steels[J].Engineering Failure Analysis,2004,11:635-653.
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